Mobile power source



FIG. 1 is a front elevational view of a mobile power source;

FIG. 2 is a rear elevational view of the mobile power source;

FIG. 3 is a left side elevational view of the mobile power source;

FIG. 4 is a right side elevational view of the mobile power source;

FIG. 5 is a top plan view of the mobile power source;

FIG. 6 is a bottom plan view of the mobile power source;

FIG. 7 is a first perspective view of the mobile power source;

FIG. 8 is a second perspective view of the mobile power source; and,

FIG. 9 is a third perspective view of the mobile power source, shown in an alternate position. 

CLAIM The ornamental design for a mobile power source, as shown and described. 